autobus

Etymology tree Proto-Indo-European *h₂ewder.? Proto-Indo-European *sóder.? Proto-Indo-European *h₂ewder. Ancient Greek αὖ (aû) Ancient Greek τόν (tón)? Ancient Greek αὐτός (autós) Ancient Greek αὐτο- (auto-)lbor. French auto- Proto-Indo-European *m(y)ewh₁-der. Proto-Italic *moweō Latin moveō Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin mōbilislbor. French mobile French automobilebor. English automobileclip. English auto- Proto-Indo-European *h₃ep-der. Proto-Italic *opnis Latin omnis Latin omnibuslbor. French omnibusbor. English omnibusclip. English bus English autobus From auto- (prefix meaning ‘self’, in the sense of being self-propelled) + bus. Sense 2 (“large group of cyclists who have fallen behind the peloton”) is borrowed from French autobus.